Category: Problem/Solution

Problem After upgrading to MacOS Sierra on a Mid-2012 Retina MacBook Pro with an aftermarket OWC SSD, the “folder with question mark” icon appears upon boot, and intermittent pinwheels cause hard-resets/crashes — especially coming back from sleep mode. System heats up during charging. Things Tried That Did Not Work PRAM Reset SMC Reset First Aid with Disk […]

Problem An otherwise elegant 5.1 sound system, the Vizio S4251W has a known bug which causes the subwoofer volume to jump to full volume from time to time, even with the latest firmware update. Discussion You will know when this happens. If you move the subwoofer volume up or down, it returns to the previously selected setting. Not […]

The Retina display makes screen savers are useful again. To select which ones run in Random mode, manually delete the ones you don’t want in OS X’s Recovery Mode. Image Retention — Retina Displays Do Not Burn In Once used to prevent permanent burn-in, screen savers are a vestige of the past. Modern screens don’t […]